Multiplying by 9 microlesson
Do you struggle with balancing your kids’ screen time with their education? Say hello to 1Question, the app that solves this problem with a fun twist! Our app lets your child earn screen time minutes in their favourite apps by watching educational videos and correctly answering quiz questions. And the best part? You get to decide which apps to lock behind learning using 1Question.
Learning time
Kids learn by watching short, engaging video lessons.
When you are solving multiplication problems where you are multiplying by 9, you can use the finger strategy to help you solve these problems. So, to look at this, we are going to use the equation 4 x 9. So, in this equation, you are multiplying 9 x 4 so 4 is the other number. So, you're going to hold your hands up like this. Now, you're going to start over here on this side and you're going to count over 4 fingers because that's what the other number other than 9 is, so 1, 2, 3, 4. You're going to put that finger down. No, whatever amount of fingers is before the one that you put down is going to be in the 10's place. So, we have three fingers before so there's going to be a 3 in the 10th place. In your answer, we have six fingers after the one that we put down so that means that there's going to be a 6 in the 1's place. So, your answer to 4 x 9 is 36.
Answer time
Kids earn more screen time by answering fun educational questions.
Here are some example of questions about this video that kids may be asked in the 1Question app to earn screen time.

What is the answer to 3 x 9 = ?
1) 272) 363) 454) 72 
What is the answer to 7 x 2 = ?
1) 632) 543) 264) 72 
What is the anser to 5 x 9 = ?
1) 452) 543) 254) 63 
What is the answer to the example equation used in the video?
1) 362) 633) 134) 25 
What is the answer to 8 x 9 = ?
1) 722) 823) 914) 63 
What is the example multiplication equation used in the video?
1) 4 x 9 =2) 3 x 9 =3) 9 x 5 =4) 9 x 2 = 
What strategy for solving equations when you are multiplying by 9 is discussed in the video?
1) Finger strategy2) Ones rule3) Arrays4) Skip counting 
Do the number of fingers before the one you put down represent the tens place?
1) Yes2) No 
Do the number of fingers after the one you put down represent the tens place?
1) No2) Yes
Recreational screen time
Kids can use the screen time minutes they earned to unlock the apps selected by their parent e.g. games, social media, streaming, etc.
Out of time
When screen time minutes run out, kids are locked out and need to complete more learning in 1Question to earn more time.
Meet your educator
Our microcourses are developed and delivered by qualified educators from around the world.
Kristin Tracy
More lessons from the Multiplying by 610 microcourse
When you are solving multiplication equations where you are multiplying by 6, you can use…
When you are solving multiplication problems where you are multiplying by 10, you can just…
Some of the trickiest multiplication equations to solve can be when you’re multiplying by 7…